Merge pull request #57 from zeapo/feature/refactor-git

Refactoring of the git process

17 files changed, 758 insertions, 371 deletions

diff --git a/app/build.gradle b/app/build.gradle
index 6e107b6e..4ec80f82 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -32,6 +32,7 @@ dependencies {
     compile project(':libraries:openpgp-api-lib')
     compile 'org.eclipse.jgit:org.eclipse.jgit:3.6.0.201411121045-m1'
     compile 'org.apache.commons:commons-io:1.3.2'
+    compile 'com.jayway.android.robotium:robotium-solo:5.2.1'
 }
 tasks.findAll {    // make all tasks whose name starts with 'assemble'...
     it.name.startsWith 'assemble'
diff --git a/app/src/androidTest/java/com/zeapo/pwdstore/ApplicationTest.java b/app/src/androidTest/java/com/zeapo/pwdstore/ApplicationTest.java
deleted file mode 100644
index e0cf8c74..00000000
--- a/app/src/androidTest/java/com/zeapo/pwdstore/ApplicationTest.java
+++ /dev/null
@@ -1,13 +0,0 @@
-package com.zeapo.pwdstore;
-
-import android.app.Application;
-import android.test.ApplicationTestCase;
-
-/**
- * <a href="http://d.android.com/tools/testing/testing_android.html">Testing Fundamentals</a>
- */
-public class ApplicationTest extends ApplicationTestCase<Application> {
-    public ApplicationTest() {
-        super(Application.class);
-    }
-}
\ No newline at end of file
diff --git a/app/src/androidTest/java/com/zeapo/pwdstore/GitActivityClone.java b/app/src/androidTest/java/com/zeapo/pwdstore/GitActivityClone.java
new file mode 100644
index 00000000..10d33472
--- /dev/null
+++ b/app/src/androidTest/java/com/zeapo/pwdstore/GitActivityClone.java
@@ -0,0 +1,111 @@
+package com.zeapo.pwdstore;
+
+import android.app.Activity;
+import android.app.Instrumentation;
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.preference.PreferenceManager;
+import android.test.ActivityInstrumentationTestCase2;
+import android.util.Log;
+import android.widget.Button;
+import android.widget.EditText;
+import android.widget.Spinner;
+
+import com.robotium.solo.Solo;
+import com.zeapo.pwdstore.git.GitActivity;
+import com.zeapo.pwdstore.utils.PasswordRepository;
+
+import org.apache.commons.io.FileUtils;
+
+import java.io.File;
+
+public class GitActivityClone extends ActivityInstrumentationTestCase2<GitActivity> {
+    private static final String TAG = "GitActTest";
+    private Activity gitActivity;
+    private Instrumentation mInstrumentation;
+    private SharedPreferences settings;
+
+    private Spinner protocolSpinner;
+    private Spinner connectionModeSpinner;
+    private EditText uri;
+    private EditText server_url;
+    private EditText server_port;
+    private EditText server_path;
+    private EditText server_user;
+
+    public GitActivityClone() {
+        super(GitActivity.class);
+    }
+
+    protected void setUp() throws Exception {
+        super.setUp();
+        mInstrumentation = getInstrumentation();
+
+        Intent intent = new Intent();
+        intent.putExtra("Operation", GitActivity.REQUEST_CLONE);
+        setActivityIntent(intent);
+
+        gitActivity = getActivity(); // get a references to the app under test
+        assertNotNull(gitActivity);
+
+        settings = PreferenceManager.getDefaultSharedPreferences(gitActivity.getApplicationContext());
+
+        uri = (EditText) gitActivity.findViewById(R.id.clone_uri);
+        server_url = ((EditText) gitActivity.findViewById(R.id.server_url));
+        server_port = ((EditText) gitActivity.findViewById(R.id.server_port));
+        server_path = ((EditText) gitActivity.findViewById(R.id.server_path));
+        server_user = ((EditText) gitActivity.findViewById(R.id.server_user));
+        protocolSpinner = (Spinner) gitActivity.findViewById(R.id.clone_protocol);
+        connectionModeSpinner = (Spinner) gitActivity.findViewById(R.id.connection_mode);
+
+        assertNotNull(uri);
+        assertNotNull(server_url);
+        assertNotNull(server_port);
+        assertNotNull(server_path);
+        assertNotNull(server_user);
+        assertNotNull(protocolSpinner);
+        assertNotNull(connectionModeSpinner);
+
+        assertEquals(protocolSpinner.getSelectedItem(), settings.getString("git_remote_protocol", "ssh://"));
+        assertEquals(connectionModeSpinner.getSelectedItem(), settings.getString("git_remote_auth", "ssh-key"));
+    }
+
+    public void testCloneSshUser() throws Exception {
+        final Solo solo = new Solo(getInstrumentation(), getActivity());
+        FileUtils.deleteDirectory(new File(gitActivity.getFilesDir() +  gitActivity.getResources().getString(R.string.store_git)));
+        // create the repository static variable in PasswordRepository
+        PasswordRepository.getRepository(new File(gitActivity.getFilesDir() + gitActivity.getResources().getString(R.string.store_git)));
+
+        gitActivity.runOnUiThread(new Runnable() {
+            public void run() {
+                protocolSpinner.setSelection(0); // ssh://
+            }
+        });
+
+        mInstrumentation.waitForIdleSync();
+
+        solo.clearEditText(server_user);
+        solo.enterText(server_user, "testpwd");
+        solo.clearEditText(server_path);
+        solo.enterText(server_path, "repo-test");
+        solo.clearEditText(server_url);
+        solo.enterText(server_url, "192.168.1.28");
+
+        mInstrumentation.waitForIdleSync();
+
+        gitActivity.runOnUiThread(new Runnable() {
+            public void run() {
+                connectionModeSpinner.setSelection(1); // user/pwd
+                ((Button) gitActivity.findViewById(R.id.clone_button)).performClick();
+            }
+        });
+
+        mInstrumentation.waitForIdleSync();
+
+        assertTrue("Could not find the dialog!", solo.searchText(gitActivity.getResources().getString(R.string.passphrase_dialog_title)));
+        solo.enterText(solo.getEditText("Password"), "test");
+        solo.clickOnButton(gitActivity.getResources().getString(R.string.dialog_ok));
+
+        mInstrumentation.waitForIdleSync();
+    }
+}
diff --git a/app/src/androidTest/java/com/zeapo/pwdstore/GitActivityTest.java b/app/src/androidTest/java/com/zeapo/pwdstore/GitActivityTest.java
new file mode 100644
index 00000000..83995b51
--- /dev/null
+++ b/app/src/androidTest/java/com/zeapo/pwdstore/GitActivityTest.java
@@ -0,0 +1,74 @@
+package com.zeapo.pwdstore;
+
+import android.app.Activity;
+import android.app.Instrumentation;
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.preference.PreferenceManager;
+import android.test.ActivityInstrumentationTestCase2;
+import android.test.ActivityTestCase;
+import android.test.InstrumentationTestCase;
+import android.util.Log;
+import android.widget.EditText;
+import android.widget.Spinner;
+
+import com.zeapo.pwdstore.git.GitActivity;
+
+public class GitActivityTest extends ActivityInstrumentationTestCase2<GitActivity> {
+    private Activity gitActivity;
+    private Instrumentation mInstrumentation;
+    private SharedPreferences settings;
+
+    private Spinner protocolSpinner;
+    private Spinner connectionModeSpinner;
+    private EditText uri;
+    private EditText server_url;
+    private EditText server_port;
+    private EditText server_path;
+    private EditText server_user;
+
+    public GitActivityTest() {
+        super(GitActivity.class);
+    }
+
+    protected void setUp() throws Exception {
+        super.setUp();
+        mInstrumentation = getInstrumentation();
+
+        Intent intent = new Intent();
+        intent.putExtra("Operation", GitActivity.EDIT_SERVER);
+        setActivityIntent(intent);
+
+        gitActivity = getActivity(); // get a references to the app under test
+        assertNotNull(gitActivity);
+
+        settings = PreferenceManager.getDefaultSharedPreferences(gitActivity.getApplicationContext());
+
+        uri = (EditText) gitActivity.findViewById(R.id.clone_uri);
+        server_url = ((EditText) gitActivity.findViewById(R.id.server_url));
+        server_port = ((EditText) gitActivity.findViewById(R.id.server_port));
+        server_path = ((EditText) gitActivity.findViewById(R.id.server_path));
+        server_user = ((EditText) gitActivity.findViewById(R.id.server_user));
+        protocolSpinner = (Spinner) gitActivity.findViewById(R.id.clone_protocol);
+        connectionModeSpinner = (Spinner) gitActivity.findViewById(R.id.connection_mode);
+
+        assertEquals(protocolSpinner.getSelectedItem(), settings.getString("git_remote_protocol", "ssh://"));
+        assertEquals(connectionModeSpinner.getSelectedItem(), settings.getString("git_remote_auth", "ssh-key"));
+    }
+
+    /**
+     * If we change from ssh protocol to https we automatically switch to username/password auth
+     * @throws Exception
+     */
+    public void testSpinnerChange() throws Exception{
+        gitActivity.runOnUiThread(new Runnable() {
+            public void run() {
+                protocolSpinner.requestFocus();
+                protocolSpinner.setSelection(1); // 1 < is https://
+            }
+        });
+        mInstrumentation.waitForIdleSync();
+
+        assertEquals(connectionModeSpinner.getSelectedItem(), "username/password"); // 1 < is username/password
+    }
+}
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 4a124c94..cc21dc54 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -11,7 +11,7 @@
 				<category android:name="android.intent.category.LAUNCHER" />
 			</intent-filter>
 		</activity>
-		<activity android:name=".git.GitHandler"
+		<activity android:name=".git.GitActivity"
 			android:parentActivityName=".PasswordStore">
 			<meta-data android:name="android.PARENT_ACTIVITY1"
 				android:value="com.zeapo.pwdstore.PasswordStore" />
diff --git a/app/src/main/java/com/zeapo/pwdstore/PasswordStore.java b/app/src/main/java/com/zeapo/pwdstore/PasswordStore.java
index f7107eff..2af74075 100644
--- a/app/src/main/java/com/zeapo/pwdstore/PasswordStore.java
+++ b/app/src/main/java/com/zeapo/pwdstore/PasswordStore.java
@@ -18,8 +18,8 @@ import android.view.MenuItem;
 import android.view.View;
 
 import com.zeapo.pwdstore.crypto.PgpHandler;
+import com.zeapo.pwdstore.git.GitActivity;
 import com.zeapo.pwdstore.git.GitAsyncTask;
-import com.zeapo.pwdstore.git.GitHandler;
 import com.zeapo.pwdstore.utils.PasswordItem;
 import com.zeapo.pwdstore.utils.PasswordRecyclerAdapter;
 import com.zeapo.pwdstore.utils.PasswordRepository;
@@ -151,9 +151,9 @@ public class PasswordStore extends ActionBarActivity  {
                     break;
                 }
 
-                intent = new Intent(this, GitHandler.class);
-                intent.putExtra("Operation", GitHandler.REQUEST_PUSH);
-                startActivityForResult(intent, GitHandler.REQUEST_PUSH);
+                intent = new Intent(this, GitActivity.class);
+                intent.putExtra("Operation", GitActivity.REQUEST_PUSH);
+                startActivityForResult(intent, GitActivity.REQUEST_PUSH);
                 this.leftActivity = true;
                 return true;
 
@@ -163,9 +163,9 @@ public class PasswordStore extends ActionBarActivity  {
                     break;
                 }
 
-                intent = new Intent(this, GitHandler.class);
-                intent.putExtra("Operation", GitHandler.REQUEST_PULL);
-                startActivityForResult(intent, GitHandler.REQUEST_PULL);
+                intent = new Intent(this, GitActivity.class);
+                intent.putExtra("Operation", GitActivity.REQUEST_PULL);
+                startActivityForResult(intent, GitActivity.REQUEST_PULL);
                 this.leftActivity = true;
                 return true;
 
@@ -186,9 +186,9 @@ public class PasswordStore extends ActionBarActivity  {
     }
 
     public void getClone(View view){
-        Intent intent = new Intent(this, GitHandler.class);
-        intent.putExtra("Operation", GitHandler.REQUEST_CLONE);
-        startActivityForResult(intent, GitHandler.REQUEST_CLONE);
+        Intent intent = new Intent(this, GitActivity.class);
+        intent.putExtra("Operation", GitActivity.REQUEST_CLONE);
+        startActivityForResult(intent, GitActivity.REQUEST_CLONE);
     }
 
     private void createRepository() {
@@ -228,7 +228,7 @@ public class PasswordStore extends ActionBarActivity  {
                         @Override
                         public void onClick(DialogInterface dialogInterface, int i) {
                             Intent intent = new Intent(activity, UserPreference.class);
-                            startActivityForResult(intent, GitHandler.REQUEST_INIT);
+                            startActivityForResult(intent, GitActivity.REQUEST_INIT);
                         }
                     })
                     .setNegativeButton(this.getResources().getString(R.string.dialog_negative), new DialogInterface.OnClickListener() {
@@ -433,7 +433,7 @@ public class PasswordStore extends ActionBarActivity  {
     protected void onActivityResult(int requestCode, int resultCode,
                                     Intent data) {
         if (resultCode == RESULT_OK) {
-            if (requestCode == GitHandler.REQUEST_CLONE)
+            if (requestCode == GitActivity.REQUEST_CLONE)
                 checkLocalRepository();
 
             switch (requestCode) {
@@ -446,10 +446,10 @@ public class PasswordStore extends ActionBarActivity  {
                     );
                     refreshListAdapter();
                     break;
-                case GitHandler.REQUEST_INIT:
+                case GitActivity.REQUEST_INIT:
                     initRepository(getCurrentFocus());
                     break;
-                case GitHandler.REQUEST_PULL:
+                case GitActivity.REQUEST_PULL:
                     updateListAdapter();
                     break;
             }
diff --git a/app/src/main/java/com/zeapo/pwdstore/UserPreference.java b/app/src/main/java/com/zeapo/pwdstore/UserPreference.java
index 89c1cd36..43198738 100644
--- a/app/src/main/java/com/zeapo/pwdstore/UserPreference.java
+++ b/app/src/main/java/com/zeapo/pwdstore/UserPreference.java
@@ -10,9 +10,10 @@ import android.preference.PreferenceFragment;
 import android.support.v7.app.ActionBarActivity;
 import android.util.Log;
 import android.view.MenuItem;
+import android.widget.Toast;
 
 import com.zeapo.pwdstore.crypto.PgpHandler;
-import com.zeapo.pwdstore.git.GitHandler;
+import com.zeapo.pwdstore.git.GitActivity;
 import com.zeapo.pwdstore.utils.PasswordRepository;
 
 import org.apache.commons.io.FileUtils;
@@ -105,8 +106,8 @@ public class UserPreference extends ActionBarActivity implements Preference.OnPr
             break;
             case "git_server_info":
             {
-                Intent intent = new Intent(this, GitHandler.class);
-                intent.putExtra("Operation", GitHandler.EDIT_SERVER);
+                Intent intent = new Intent(this, GitActivity.class);
+                intent.putExtra("Operation", GitActivity.EDIT_SERVER);
                 startActivityForResult(intent, EDIT_GIT_INFO);
             }
             break;
@@ -153,7 +154,7 @@ public class UserPreference extends ActionBarActivity implements Preference.OnPr
                 {
                     try {
                         copySshKey(data.getData());
-                        Log.i("PREF", "Got key");
+                        Toast.makeText(this, this.getResources().getString(R.string.ssh_key_success_dialog_title), Toast.LENGTH_LONG).show();
                         setResult(RESULT_OK);
                         finish();
                     } catch (IOException e)
diff --git a/app/src/main/java/com/zeapo/pwdstore/git/CloneOperation.java b/app/src/main/java/com/zeapo/pwdstore/git/CloneOperation.java
new file mode 100644
index 00000000..dc94ce3b
--- /dev/null
+++ b/app/src/main/java/com/zeapo/pwdstore/git/CloneOperation.java
@@ -0,0 +1,67 @@
+package com.zeapo.pwdstore.git;
+
+import android.app.Activity;
+
+import org.eclipse.jgit.api.CloneCommand;
+import org.eclipse.jgit.api.Git;
+
+import java.io.File;
+
+public class CloneOperation extends GitOperation {
+    private static final String TAG = "CLONEOPT";
+
+    /**
+     * Creates a new clone operation
+     * @param fileDir the git working tree directory
+     * @param callingActivity the calling activity
+     */
+    public CloneOperation(File fileDir, Activity callingActivity) {
+        super(fileDir, callingActivity);
+    }
+
+    /**
+     * Sets the command using the repository uri
+     * @param uri the uri of the repository
+     * @return the current object
+     */
+    public CloneOperation setCommand(String uri) {
+        this.command = Git.cloneRepository().
+                setCloneAllBranches(true).
+                setDirectory(repository.getWorkTree()).
+                setURI(uri);
+        return this;
+    }
+
+    /**
+     * sets the authentication for user/pwd scheme
+     * @param username the username
+     * @param password the password
+     * @return the current object
+     */
+    @Override
+    public CloneOperation setAuthentication(String username, String password) {
+        super.setAuthentication(username, password);
+        return this;
+    }
+
+    /**
+     * sets the authentication for the ssh-key scheme
+     * @param sshKey     the ssh-key file
+     * @param username   the username
+     * @param passphrase the passphrase
+     * @return the current object
+     */
+    @Override
+    public CloneOperation setAuthentication(File sshKey, String username, String passphrase) {
+        super.setAuthentication(sshKey, username, passphrase);
+        return this;
+    }
+
+    @Override
+    public void execute() throws Exception  {
+        if (this.provider != null) {
+            ((CloneCommand) this.command).setCredentialsProvider(this.provider);
+        }
+        new GitAsyncTask(callingActivity, true, false, CloneCommand.class).execute(this.command);
+    }
+}
diff --git a/app/src/main/java/com/zeapo/pwdstore/git/GitHandler.java b/app/src/main/java/com/zeapo/pwdstore/git/GitActivity.java
index 85872d65..637d2052 100644
--- a/app/src/main/java/com/zeapo/pwdstore/git/GitHandler.java
+++ b/app/src/main/java/com/zeapo/pwdstore/git/GitActivity.java
@@ -10,22 +10,17 @@ import android.os.Bundle;
 import android.preference.PreferenceManager;
 import android.support.v7.app.ActionBarActivity;
 import android.text.Editable;
-import android.text.InputType;
 import android.text.TextWatcher;
+import android.util.Log;
 import android.view.Menu;
 import android.view.MenuItem;
 import android.view.View;
 import android.widget.AdapterView;
 import android.widget.ArrayAdapter;
 import android.widget.EditText;
-import android.widget.LinearLayout;
 import android.widget.Spinner;
 import android.widget.TextView;
 
-import com.jcraft.jsch.JSch;
-import com.jcraft.jsch.JSchException;
-import com.jcraft.jsch.Session;
-import com.jcraft.jsch.UserInfo;
 import com.zeapo.pwdstore.R;
 import com.zeapo.pwdstore.UserPreference;
 import com.zeapo.pwdstore.utils.PasswordRepository;
@@ -34,29 +29,17 @@ import org.eclipse.jgit.api.CloneCommand;
 import org.eclipse.jgit.api.Git;
 
 import org.apache.commons.io.FileUtils;
-import org.eclipse.jgit.api.GitCommand;
-import org.eclipse.jgit.api.PullCommand;
-import org.eclipse.jgit.api.PushCommand;
-import org.eclipse.jgit.errors.UnsupportedCredentialItem;
-import org.eclipse.jgit.transport.CredentialItem;
-import org.eclipse.jgit.transport.CredentialsProvider;
-import org.eclipse.jgit.transport.CredentialsProviderUserInfo;
-import org.eclipse.jgit.transport.JschConfigSessionFactory;
-import org.eclipse.jgit.transport.OpenSshConfig;
-import org.eclipse.jgit.transport.SshSessionFactory;
-import org.eclipse.jgit.transport.URIish;
 import org.eclipse.jgit.transport.UsernamePasswordCredentialsProvider;
-import org.eclipse.jgit.util.FS;
 
 import java.io.File;
 import java.io.IOException;
-import java.lang.reflect.Method;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
 // TODO move the messages to strings.xml
 
-public class GitHandler extends ActionBarActivity {
+public class GitActivity extends ActionBarActivity {
+    private static final String TAG = "GitAct";
 
     private Activity activity;
     private Context context;
@@ -77,8 +60,6 @@ public class GitHandler extends ActionBarActivity {
     public static final int REQUEST_INIT = 104;
     public static final int EDIT_SERVER = 105;
 
-    private static final int GET_SSH_KEY_FROM_CLONE = 201;
-
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
@@ -98,11 +79,11 @@ public class GitHandler extends ActionBarActivity {
             case REQUEST_CLONE:
             case EDIT_SERVER:
                 setContentView(R.layout.activity_git_clone);
+                setTitle(R.string.title_activity_git_clone);
 
                 final Spinner protcol_spinner = (Spinner) findViewById(R.id.clone_protocol);
                 final Spinner connection_mode_spinner = (Spinner) findViewById(R.id.connection_mode);
 
-
                 // init the spinner for connection modes
                 final ArrayAdapter<CharSequence> connection_mode_adapter = ArrayAdapter.createFromResource(this,
                         R.array.connection_modes, android.R.layout.simple_spinner_item);
@@ -131,9 +112,9 @@ public class GitHandler extends ActionBarActivity {
                         new AdapterView.OnItemSelectedListener() {
                             @Override
                             public void onItemSelected(AdapterView<?> adapterView, View view, int i, long l) {
-                                protocol = ((Spinner)findViewById(R.id.clone_protocol)).getSelectedItem().toString();
+                                protocol = ((Spinner) findViewById(R.id.clone_protocol)).getSelectedItem().toString();
                                 if (protocol.equals("ssh://")) {
-                                    ((EditText)findViewById(R.id.clone_uri)).setHint("user@hostname:path");
+                                    ((EditText) findViewById(R.id.clone_uri)).setHint("user@hostname:path");
 
                                     ((EditText) findViewById(R.id.server_port)).setHint(R.string.default_ssh_port);
 
@@ -141,7 +122,7 @@ public class GitHandler extends ActionBarActivity {
                                     connection_mode_spinner.setSelection(0);
                                     connection_mode_spinner.setEnabled(true);
                                 } else {
-                                    ((EditText)findViewById(R.id.clone_uri)).setHint("hostname/path");
+                                    ((EditText) findViewById(R.id.clone_uri)).setHint("hostname/path");
 
                                     ((EditText) findViewById(R.id.server_port)).setHint(R.string.default_https_port);
 
@@ -158,13 +139,24 @@ public class GitHandler extends ActionBarActivity {
                         }
                 );
 
+                if (protocol.equals("ssh://")) {
+                    protcol_spinner.setSelection(0);
+                } else {
+                    protcol_spinner.setSelection(1);
+                }
+
+                if (connectionMode.equals("ssh-key")) {
+                    connection_mode_spinner.setSelection(0);
+                } else {
+                    connection_mode_spinner.setSelection(1);
+                }
 
                 // init the server information
                 final EditText server_url = ((EditText) findViewById(R.id.server_url));
                 final EditText server_port = ((EditText) findViewById(R.id.server_port));
                 final EditText server_path = ((EditText) findViewById(R.id.server_path));
                 final EditText server_user = ((EditText) findViewById(R.id.server_user));
-                final EditText server_uri = ((EditText)findViewById(R.id.clone_uri));
+                final EditText server_uri = ((EditText) findViewById(R.id.clone_uri));
 
                 View.OnFocusChangeListener updateListener = new View.OnFocusChangeListener() {
                     @Override
@@ -180,7 +172,8 @@ public class GitHandler extends ActionBarActivity {
 
                 server_url.addTextChangedListener(new TextWatcher() {
                     @Override
-                    public void beforeTextChanged(CharSequence charSequence, int i, int i2, int i3) { }
+                    public void beforeTextChanged(CharSequence charSequence, int i, int i2, int i3) {
+                    }
 
                     @Override
                     public void onTextChanged(CharSequence charSequence, int i, int i2, int i3) {
@@ -189,11 +182,13 @@ public class GitHandler extends ActionBarActivity {
                     }
 
                     @Override
-                    public void afterTextChanged(Editable editable) { }
+                    public void afterTextChanged(Editable editable) {
+                    }
                 });
                 server_port.addTextChangedListener(new TextWatcher() {
                     @Override
-                    public void beforeTextChanged(CharSequence charSequence, int i, int i2, int i3) { }
+                    public void beforeTextChanged(CharSequence charSequence, int i, int i2, int i3) {
+                    }
 
                     @Override
                     public void onTextChanged(CharSequence charSequence, int i, int i2, int i3) {
@@ -202,11 +197,13 @@ public class GitHandler extends ActionBarActivity {
                     }
 
                     @Override
-                    public void afterTextChanged(Editable editable) { }
+                    public void afterTextChanged(Editable editable) {
+                    }
                 });
                 server_user.addTextChangedListener(new TextWatcher() {
                     @Override
-                    public void beforeTextChanged(CharSequence charSequence, int i, int i2, int i3) { }
+                    public void beforeTextChanged(CharSequence charSequence, int i, int i2, int i3) {
+                    }
 
                     @Override
                     public void onTextChanged(CharSequence charSequence, int i, int i2, int i3) {
@@ -215,11 +212,13 @@ public class GitHandler extends ActionBarActivity {
                     }
 
                     @Override
-                    public void afterTextChanged(Editable editable) { }
+                    public void afterTextChanged(Editable editable) {
+                    }
                 });
                 server_path.addTextChangedListener(new TextWatcher() {
                     @Override
-                    public void beforeTextChanged(CharSequence charSequence, int i, int i2, int i3) { }
+                    public void beforeTextChanged(CharSequence charSequence, int i, int i2, int i3) {
+                    }
 
                     @Override
                     public void onTextChanged(CharSequence charSequence, int i, int i2, int i3) {
@@ -228,7 +227,8 @@ public class GitHandler extends ActionBarActivity {
                     }
 
                     @Override
-                    public void afterTextChanged(Editable editable) { }
+                    public void afterTextChanged(Editable editable) {
+                    }
                 });
 
                 server_uri.addTextChangedListener(new TextWatcher() {
@@ -247,8 +247,7 @@ public class GitHandler extends ActionBarActivity {
                     }
                 });
 
-                if (operationCode == EDIT_SERVER)
-                {
+                if (operationCode == EDIT_SERVER) {
                     findViewById(R.id.clone_button).setVisibility(View.INVISIBLE);
                     findViewById(R.id.save_button).setVisibility(View.VISIBLE);
                 } else {
@@ -256,21 +255,24 @@ public class GitHandler extends ActionBarActivity {
                     findViewById(R.id.save_button).setVisibility(View.INVISIBLE);
                 }
 
+                updateURI();
 
                 break;
             case REQUEST_PULL:
-                authenticateAndRun("pullOperation");
+                pullFromRepository();
                 break;
 
             case REQUEST_PUSH:
-                authenticateAndRun("pushOperation");
+                pushToRepository();
                 break;
         }
 
 
     }
 
-    /** Fills in the server_uri field with the information coming from other fields */
+    /**
+     * Fills in the server_uri field with the information coming from other fields
+     */
     private void updateURI() {
         EditText uri = (EditText) findViewById(R.id.clone_uri);
         EditText server_url = ((EditText) findViewById(R.id.server_url));
@@ -278,11 +280,9 @@ public class GitHandler extends ActionBarActivity {
         EditText server_path = ((EditText) findViewById(R.id.server_path));
         EditText server_user = ((EditText) findViewById(R.id.server_user));
 
-        if (uri != null) { 
-            switch (protocol)
-            {
-                case "ssh://":
-                {
+        if (uri != null) {
+            switch (protocol) {
+                case "ssh://": {
                     String hostname =
                             server_user.getText()
                                     + "@" +
@@ -306,8 +306,7 @@ public class GitHandler extends ActionBarActivity {
                     if (!hostname.equals("@:")) uri.setText(hostname);
                 }
                 break;
-                case "https://":
-                {
+                case "https://": {
                     StringBuilder hostname = new StringBuilder();
                     hostname.append(server_url.getText().toString().trim());
 
@@ -325,13 +324,15 @@ public class GitHandler extends ActionBarActivity {
                 }
                 break;
                 default:
-                break;
+                    break;
             }
 
         }
     }
 
-    /** Splits the information in server_uri into the other fields */
+    /**
+     * Splits the information in server_uri into the other fields
+     */
     private void splitURI() {
         EditText server_uri = (EditText) findViewById(R.id.clone_uri);
         EditText server_url = ((EditText) findViewById(R.id.server_url));
@@ -397,76 +398,35 @@ public class GitHandler extends ActionBarActivity {
         return super.onOptionsItemSelected(item);
     }
 
-    protected class GitConfigSessionFactory extends JschConfigSessionFactory {
-
-        protected void configure(OpenSshConfig.Host hc, Session session) {
-            session.setConfig("StrictHostKeyChecking", "no");
-        }
+    /**
+     * Saves the configuration found in the form
+     */
+    private void saveConfiguration() {
+        // remember the settings
+        SharedPreferences.Editor editor = settings.edit();
 
-        @Override
-        protected JSch
-        getJSch(final OpenSshConfig.Host hc, FS fs) throws JSchException {
-            JSch jsch = super.getJSch(hc, fs);
-            jsch.removeAllIdentity();
-            return jsch;
-        }
+        editor.putString("git_remote_server", ((EditText) findViewById(R.id.server_url)).getText().toString());
+        editor.putString("git_remote_location", ((EditText) findViewById(R.id.server_path)).getText().toString());
+        editor.putString("git_remote_username", ((EditText) findViewById(R.id.server_user)).getText().toString());
+        editor.putString("git_remote_protocol", protocol);
+        editor.putString("git_remote_auth", connectionMode);
+        editor.putString("git_remote_port", port);
+        editor.commit();
     }
 
-    protected class SshConfigSessionFactory extends GitConfigSessionFactory {
-        private String sshKey;
-        private String passphrase;
-
-        public SshConfigSessionFactory(String sshKey, String passphrase) {
-            this.sshKey = sshKey;
-            this.passphrase = passphrase;
-        }
-
-        @Override
-        protected JSch
-        getJSch(final OpenSshConfig.Host hc, FS fs) throws JSchException {
-            JSch jsch = super.getJSch(hc, fs);
-            jsch.removeAllIdentity();
-            jsch.addIdentity(sshKey);
-            return jsch;
-        }
-
-        @Override
-        protected void configure(OpenSshConfig.Host hc, Session session) {
-            session.setConfig("StrictHostKeyChecking", "no");
-
-            CredentialsProvider provider = new CredentialsProvider() {
-                @Override
-                public boolean isInteractive() {
-                    return false;
-                }
-
-                @Override
-                public boolean supports(CredentialItem... items) {
-                    return true;
-                }
-
-                @Override
-                public boolean get(URIish uri, CredentialItem... items) throws UnsupportedCredentialItem {
-                    for (CredentialItem item : items) {
-                        if (item instanceof CredentialItem.Username) {
-                            ((CredentialItem.Username) item).setValue(settings.getString("git_remote_username", "git"));
-                            continue;
-                        }
-                        if (item instanceof CredentialItem.StringType) {
-                            ((CredentialItem.StringType) item).setValue(passphrase);
-                        }
-                    }
-                    return true;
-                }
-            };
-            UserInfo userInfo = new CredentialsProviderUserInfo(session, provider);
-            session.setUserInfo(userInfo);
-        }
+    /**
+     * Save the repository information to the shared preferences settings
+     *
+     * @param view
+     */
+    public void saveConfiguration(View view) {
+        saveConfiguration();
+        PasswordRepository.addRemote("origin", ((EditText) findViewById(R.id.clone_uri)).getText().toString(), true);
     }
 
-
     /**
      * Clones the repository, the directory exists, deletes it
+     *
      * @param view
      */
     public void cloneRepository(View view) {
@@ -505,8 +465,7 @@ public class GitHandler extends ActionBarActivity {
             username = hostname.split("@")[0];
         }
 
-
-        if (localDir.exists()) {
+        if (localDir.exists() && localDir.listFiles().length != 0) {
             new AlertDialog.Builder(this).
                     setTitle(R.string.dialog_delete_title).
                     setMessage(R.string.dialog_delete_msg).
@@ -516,7 +475,15 @@ public class GitHandler extends ActionBarActivity {
                                 public void onClick(DialogInterface dialog, int id) {
                                     try {
                                         FileUtils.deleteDirectory(localDir);
-                                        authenticateAndRun("cloneOperation");
+                                        try {
+                                            new CloneOperation(localDir, activity)
+                                                    .setCommand(hostname)
+                                                    .executeAfterAuthentication(connectionMode, settings.getString("git_remote_username", "git"), new File(getFilesDir() + "/.ssh_key"));
+                                        } catch (Exception e) {
+                                            //This is what happens when jgit fails :(
+                                            //TODO Handle the diffent cases of exceptions
+                                            e.printStackTrace();
+                                        }
                                     } catch (IOException e) {
                                         //TODO Handle the exception correctly if we are unable to delete the directory...
                                         e.printStackTrace();
@@ -538,8 +505,12 @@ public class GitHandler extends ActionBarActivity {
                     ).
                     show();
         } else {
+            saveConfiguration();
+
             try {
-                authenticateAndRun("cloneOperation");
+                new CloneOperation(localDir, activity)
+                        .setCommand(hostname)
+                        .executeAfterAuthentication(connectionMode, settings.getString("git_remote_username", "git"), new File(getFilesDir() + "/.ssh_key"));
             } catch (Exception e) {
                 //This is what happens when jgit fails :(
                 //TODO Handle the diffent cases of exceptions
@@ -548,53 +519,28 @@ public class GitHandler extends ActionBarActivity {
         }
     }
 
-
     /**
-     * Save the repository information to the shared preferences settings
-     * @param view
+     * Pull the latest changes from the remote repository and merges them locally
      */
-    public void saveConfiguration(View view) {
-        // remember the settings
-        SharedPreferences.Editor editor = settings.edit();
-
-        editor.putString("git_remote_server", ((EditText) findViewById(R.id.server_url)).getText().toString());
-        editor.putString("git_remote_location", ((EditText) findViewById(R.id.server_path)).getText().toString());
-        editor.putString("git_remote_username", ((EditText) findViewById(R.id.server_user)).getText().toString());
-        editor.putString("git_remote_protocol", protocol);
-        editor.putString("git_remote_auth", connectionMode);
-        editor.putString("git_remote_port", port);
-        editor.commit();
-
-        PasswordRepository.addRemote("origin", ((EditText) findViewById(R.id.clone_uri)).getText().toString(), true);
+    public void pullFromRepository() {
+        syncRepository(REQUEST_PULL);
     }
 
-    public void cloneOperation(UsernamePasswordCredentialsProvider provider) {
-
-        // remember the settings
-        SharedPreferences.Editor editor = settings.edit();
-
-        editor.putString("git_remote_server", ((EditText) findViewById(R.id.server_url)).getText().toString());
-        editor.putString("git_remote_location", ((EditText) findViewById(R.id.server_path)).getText().toString());
-        editor.putString("git_remote_username", ((EditText) findViewById(R.id.server_user)).getText().toString());
-        editor.putString("git_remote_protocol", protocol);
-        editor.putString("git_remote_auth", connectionMode);
-        editor.putString("git_remote_port", port);
-        editor.commit();
-
-        CloneCommand cmd = Git.cloneRepository().
-                setCredentialsProvider(provider).
-                setCloneAllBranches(true).
-                setDirectory(localDir).
-                setURI(hostname);
-
-        new GitAsyncTask(activity, true, false, CloneCommand.class).execute(cmd);
+    /**
+     * Pushes the latest changes from the local repository to the remote one
+     */
+    public void pushToRepository() {
+        syncRepository(REQUEST_PUSH);
     }
 
-    public void pullOperation(UsernamePasswordCredentialsProvider provider) {
-
+    /**
+     * Syncs the local repository with the remote one (either pull or push)
+     * @param operation the operation to execute can be REQUEST_PULL or REQUEST_PUSH
+     */
+    private void syncRepository(int operation) {
         if (settings.getString("git_remote_username", "").isEmpty() ||
-            settings.getString("git_remote_server", "").isEmpty() ||
-            settings.getString("git_remote_location", "").isEmpty() )
+                settings.getString("git_remote_server", "").isEmpty() ||
+                settings.getString("git_remote_location", "").isEmpty())
             new AlertDialog.Builder(this)
                     .setMessage(activity.getResources().getString(R.string.set_information_dialog_text))
                     .setPositiveButton(activity.getResources().getString(R.string.dialog_positive), new DialogInterface.OnClickListener() {
@@ -616,185 +562,23 @@ public class GitHandler extends ActionBarActivity {
 
         else {
             // check that the remote origin is here, else add it
-            PasswordRepository.addRemote("origin", settings.getString("git_remote_username", "user")
-                    + "@" +
-                    settings.getString("git_remote_server", "server.com").trim()
-                    + ":" +
-                    settings.getString("git_remote_location", "path/to/repository"), false);
-
-            GitCommand cmd;
-            if (provider != null)
-                cmd = new Git(PasswordRepository.getRepository(new File("")))
-                        .pull()
-                        .setRebase(true)
-                        .setRemote("origin")
-                        .setCredentialsProvider(provider);
-            else
-                cmd = new Git(PasswordRepository.getRepository(new File("")))
-                        .pull()
-                        .setRebase(true)
-                        .setRemote("origin");
-
-            new GitAsyncTask(activity, true, false, PullCommand.class).execute(cmd);
-        }
-    }
-
+            PasswordRepository.addRemote("origin", hostname, false);
+            GitOperation op;
 
-    public void pushOperation(UsernamePasswordCredentialsProvider provider) {
-        if (settings.getString("git_remote_username", "user").isEmpty() ||
-                settings.getString("git_remote_server", "server.com").trim().isEmpty() ||
-                settings.getString("git_remote_location", "path/to/repository").isEmpty() )
-            new AlertDialog.Builder(this)
-                    .setMessage("You have to set the information about the server before synchronizing with the server")
-                    .setPositiveButton("On my way!", new DialogInterface.OnClickListener() {
-                        @Override
-                        public void onClick(DialogInterface dialogInterface, int i) {
-                            Intent intent = new Intent(activity, UserPreference.class);
-                            startActivityForResult(intent, REQUEST_PUSH);
-                        }
-                    })
-                    .setNegativeButton("Nah... later", new DialogInterface.OnClickListener() {
-                        @Override
-                        public void onClick(DialogInterface dialogInterface, int i) {
-                            // do nothing :(
-                            setResult(RESULT_OK);
-                            finish();
-                        }
-                    })
-                    .show();
-
-        else {
-            // check that the remote origin is here, else add it
-            PasswordRepository.addRemote("origin", settings.getString("git_remote_username", "user")
-                    + "@" +
-                    settings.getString("git_remote_server", "server.com").trim()
-                    + ":" +
-                    settings.getString("git_remote_location", "path/to/repository"), false);
-
-            GitCommand cmd;
-            if (provider != null)
-                cmd = new Git(PasswordRepository.getRepository(new File("")))
-                        .push()
-                        .setPushAll()
-                        .setRemote("origin")
-                        .setCredentialsProvider(provider);
-            else
-                cmd = new Git(PasswordRepository.getRepository(new File("")))
-                        .push()
-                        .setPushAll()
-                        .setRemote("origin");
-
-
-            new GitAsyncTask(activity, true, false, PushCommand.class).execute(cmd);
-        }
-    }
-
-    /** Finds the method and provides it with authentication paramters via invokeWithAuthentication */
-    private void authenticateAndRun(String operation) {
-        try {
-            invokeWithAuthentication(this, GitHandler.class.getMethod(operation, UsernamePasswordCredentialsProvider.class));
-        } catch (Exception e) {
-            e.printStackTrace();
-        }
-    }
-
-    /** Calls a method encapsulating a GitCommand and providing it with authentication parameters
-     *
-     * @param activity
-     * @param method
-     */
-    private void invokeWithAuthentication(final GitHandler activity, final Method method) {
-
-        if (connectionMode.equalsIgnoreCase("ssh-key")) {
-            final File sshKey = new File(getFilesDir() + "/.ssh_key");
-            if (!sshKey.exists()) {
-                new AlertDialog.Builder(this)
-                        .setMessage(activity.getResources().getString(R.string.ssh_preferences_dialog_text))
-                        .setTitle(activity.getResources().getString(R.string.ssh_preferences_dialog_title))
-                        .setPositiveButton(activity.getResources().getString(R.string.dialog_ok), new DialogInterface.OnClickListener() {
-                            @Override
-                            public void onClick(DialogInterface dialog, int id) {
-                                try {
-                                    Intent intent = new Intent(getApplicationContext(), UserPreference.class);
-                                    intent.putExtra("operation", "get_ssh_key");
-                                    startActivityForResult(intent, GET_SSH_KEY_FROM_CLONE);
-                                } catch (Exception e) {
-                                    System.out.println("Exception caught :(");
-                                    e.printStackTrace();
-                                }
-                            }
-                        }).setNegativeButton(activity.getResources().getString(R.string.dialog_cancel), new DialogInterface.OnClickListener() {
-                    @Override
-                    public void onClick(DialogInterface dialog, int id) {
-                        // Do nothing...
-                    }
-                }).show();
+            if (operation == REQUEST_PULL) {
+                op = new PullOperation(localDir, activity).setCommand();
+            } else if (operation == REQUEST_PUSH) {
+                op = new PushOperation(localDir, activity).setCommand();
             } else {
-                final EditText passphrase = new EditText(activity);
-                passphrase.setHint("Passphrase");
-                passphrase.setWidth(LinearLayout.LayoutParams.MATCH_PARENT);
-                passphrase.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_PASSWORD);
-
-                new AlertDialog.Builder(activity)
-                        .setTitle(activity.getResources().getString(R.string.passphrase_dialog_title))
-                        .setMessage(activity.getResources().getString(R.string.passphrase_dialog_text))
-                        .setView(passphrase)
-                        .setPositiveButton(activity.getResources().getString(R.string.dialog_ok), new DialogInterface.OnClickListener() {
-                            public void onClick(DialogInterface dialog, int whichButton) {
-
-                                SshSessionFactory.setInstance(new GitConfigSessionFactory());
-                                try {
-
-                                    JschConfigSessionFactory sessionFactory = new SshConfigSessionFactory(sshKey.getAbsolutePath(), passphrase.getText().toString());
-                                    SshSessionFactory.setInstance(sessionFactory);
-
-                                    try {
-                                        method.invoke(activity, (UsernamePasswordCredentialsProvider) null);
-                                    } catch (Exception e){
-                                        e.printStackTrace();
-                                    }
-
-                                } catch (Exception e){
-                                    e.printStackTrace();
-                                }
-
-                            }
-                        }).setNegativeButton(activity.getResources().getString(R.string.dialog_cancel), new DialogInterface.OnClickListener() {
-                    public void onClick(DialogInterface dialog, int whichButton) {
-                        // Do nothing.
-                    }
-                }).show();
+                Log.e(TAG, "Sync operation not recognized : " + operation);
+                return;
             }
-        } else {
-            final EditText password = new EditText(activity);
-            password.setHint("Password");
-            password.setWidth(LinearLayout.LayoutParams.MATCH_PARENT);
-            password.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_PASSWORD);
-
-            new AlertDialog.Builder(activity)
-                    .setTitle(activity.getResources().getString(R.string.passphrase_dialog_title))
-                    .setMessage(activity.getResources().getString(R.string.password_dialog_text))
-                    .setView(password)
-                    .setPositiveButton(activity.getResources().getString(R.string.dialog_ok), new DialogInterface.OnClickListener() {
-                        public void onClick(DialogInterface dialog, int whichButton) {
-
-                            SshSessionFactory.setInstance(new GitConfigSessionFactory());
-                            try {
-                                method.invoke(activity,
-                                        new UsernamePasswordCredentialsProvider(
-                                                settings.getString("git_remote_username", "git"),
-                                                password.getText().toString())
-                                );
-                            } catch (Exception e){
-                                e.printStackTrace();
-                            }
 
-                        }
-                    }).setNegativeButton(activity.getResources().getString(R.string.dialog_cancel), new DialogInterface.OnClickListener() {
-                public void onClick(DialogInterface dialog, int whichButton) {
-                    // Do nothing.
-                }
-            }).show();
+            try {
+                op.executeAfterAuthentication(connectionMode, settings.getString("git_remote_username", "git"), new File(getFilesDir() + "/.ssh_key"));
+            } catch (Exception e) {
+                e.printStackTrace();
+            }
         }
     }
 
@@ -807,16 +591,31 @@ public class GitHandler extends ActionBarActivity {
         }
 
         if (resultCode == RESULT_OK) {
+            GitOperation op;
 
             switch (requestCode) {
                 case REQUEST_PULL:
-                    authenticateAndRun("pullOperation");
+                    op = new PullOperation(localDir, activity).setCommand();
                     break;
+
                 case REQUEST_PUSH:
-                    authenticateAndRun("pushOperation");
+                    op = new PushOperation(localDir, activity).setCommand();
                     break;
-                case GET_SSH_KEY_FROM_CLONE:
-                    authenticateAndRun("cloneOperation");
+
+                case GitOperation.GET_SSH_KEY_FROM_CLONE:
+                    op = new CloneOperation(localDir, activity).setCommand(hostname);
+                    break;
+                default:
+                    Log.e(TAG, "Operation not recognized : " + resultCode);
+                    setResult(RESULT_CANCELED);
+                    finish();
+                    return;
+            }
+
+            try {
+                op.executeAfterAuthentication(connectionMode, settings.getString("git_remote_username", "git"), new File(getFilesDir() + "/.ssh_key"));
+            } catch (Exception e) {
+                e.printStackTrace();
             }
 
         }
diff --git a/app/src/main/java/com/zeapo/pwdstore/git/GitOperation.java b/app/src/main/java/com/zeapo/pwdstore/git/GitOperation.java
new file mode 100644
index 00000000..60112c90
--- /dev/null
+++ b/app/src/main/java/com/zeapo/pwdstore/git/GitOperation.java
@@ -0,0 +1,170 @@
+package com.zeapo.pwdstore.git;
+
+import android.app.Activity;
+import android.app.AlertDialog;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.support.annotation.Nullable;
+import android.text.InputType;
+import android.util.Log;
+import android.widget.EditText;
+import android.widget.LinearLayout;
+
+import com.zeapo.pwdstore.R;
+import com.zeapo.pwdstore.UserPreference;
+import com.zeapo.pwdstore.git.config.GitConfigSessionFactory;
+import com.zeapo.pwdstore.git.config.SshConfigSessionFactory;
+import com.zeapo.pwdstore.utils.PasswordRepository;
+
+import org.eclipse.jgit.api.CloneCommand;
+import org.eclipse.jgit.api.GitCommand;
+import org.eclipse.jgit.lib.Repository;
+import org.eclipse.jgit.transport.JschConfigSessionFactory;
+import org.eclipse.jgit.transport.SshSessionFactory;
+import org.eclipse.jgit.transport.UsernamePasswordCredentialsProvider;
+
+import java.io.File;
+
+public abstract class GitOperation {
+    private static final String TAG = "GitOpt";
+    public static final int GET_SSH_KEY_FROM_CLONE = 201;
+
+    protected final Repository repository;
+    protected final Activity callingActivity;
+    protected UsernamePasswordCredentialsProvider provider;
+    protected GitCommand command;
+
+    /**
+     * Creates a new git operation
+     *
+     * @param fileDir         the git working tree directory
+     * @param callingActivity the calling activity
+     */
+    public GitOperation(File fileDir, Activity callingActivity) {
+        this.repository = PasswordRepository.getRepository(fileDir);
+        this.callingActivity = callingActivity;
+    }
+
+    /**
+     * Sets the authentication using user/pwd scheme
+     *
+     * @param username the username
+     * @param password the password
+     * @return the current object
+     */
+    public GitOperation setAuthentication(String username, String password) {
+        SshSessionFactory.setInstance(new GitConfigSessionFactory());
+        this.provider = new UsernamePasswordCredentialsProvider(username, password);
+        return this;
+    }
+
+    /**
+     * Sets the authentication using ssh-key scheme
+     *
+     * @param sshKey     the ssh-key file
+     * @param username   the username
+     * @param passphrase the passphrase
+     * @return the current object
+     */
+    public GitOperation setAuthentication(File sshKey, String username, String passphrase) {
+        JschConfigSessionFactory sessionFactory = new SshConfigSessionFactory(sshKey.getAbsolutePath(), username, passphrase);
+        SshSessionFactory.setInstance(sessionFactory);
+        this.provider = null;
+        return this;
+    }
+
+    /**
+     * Executes the GitCommand in an async task
+     *
+     * @throws Exception
+     */
+    public abstract void execute() throws Exception;
+
+    /**
+     * Executes the GitCommand in an async task after creating the authentication
+     *
+     * @param connectionMode the server-connection mode
+     * @param username       the username
+     * @param sshKey         the ssh-key file
+     * @throws Exception
+     */
+    public void executeAfterAuthentication(String connectionMode, final String username, @Nullable final File sshKey) throws Exception {
+        if (connectionMode.equalsIgnoreCase("ssh-key")) {
+            if (sshKey == null || !sshKey.exists()) {
+                new AlertDialog.Builder(callingActivity)
+                        .setMessage(callingActivity.getResources().getString(R.string.ssh_preferences_dialog_text))
+                        .setTitle(callingActivity.getResources().getString(R.string.ssh_preferences_dialog_title))
+                        .setPositiveButton(callingActivity.getResources().getString(R.string.dialog_ok), new DialogInterface.OnClickListener() {
+                            @Override
+                            public void onClick(DialogInterface dialog, int id) {
+                                try {
+                                    // Ask the UserPreference to provide us with the ssh-key
+                                    // onResult has to be handled by the callingActivity
+                                    Intent intent = new Intent(callingActivity.getApplicationContext(), UserPreference.class);
+                                    intent.putExtra("operation", "get_ssh_key");
+                                    callingActivity.startActivityForResult(intent, GET_SSH_KEY_FROM_CLONE);
+                                } catch (Exception e) {
+                                    System.out.println("Exception caught :(");
+                                    e.printStackTrace();
+                                }
+                            }
+                        }).setNegativeButton(callingActivity.getResources().getString(R.string.dialog_cancel), new DialogInterface.OnClickListener() {
+                    @Override
+                    public void onClick(DialogInterface dialog, int id) {
+                        // Do nothing...
+                    }
+                }).show();
+            } else {
+                final EditText passphrase = new EditText(callingActivity);
+                passphrase.setHint("Passphrase");
+                passphrase.setWidth(LinearLayout.LayoutParams.MATCH_PARENT);
+                passphrase.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_PASSWORD);
+
+                new AlertDialog.Builder(callingActivity)
+                        .setTitle(callingActivity.getResources().getString(R.string.passphrase_dialog_title))
+                        .setMessage(callingActivity.getResources().getString(R.string.passphrase_dialog_text))
+                        .setView(passphrase)
+                        .setPositiveButton(callingActivity.getResources().getString(R.string.dialog_ok), new DialogInterface.OnClickListener() {
+                            public void onClick(DialogInterface dialog, int whichButton) {
+                                try {
+                                    // Authenticate using the ssh-key and then execute the command
+                                    setAuthentication(sshKey, username, passphrase.getText().toString()).execute();
+                                } catch (Exception e) {
+                                    e.printStackTrace();
+                                }
+
+                            }
+                        }).setNegativeButton(callingActivity.getResources().getString(R.string.dialog_cancel), new DialogInterface.OnClickListener() {
+                    public void onClick(DialogInterface dialog, int whichButton) {
+                        // Do nothing.
+                    }
+                }).show();
+            }
+        } else {
+            final EditText password = new EditText(callingActivity);
+            password.setHint("Password");
+            password.setWidth(LinearLayout.LayoutParams.MATCH_PARENT);
+            password.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_PASSWORD);
+
+            new AlertDialog.Builder(callingActivity)
+                    .setTitle(callingActivity.getResources().getString(R.string.passphrase_dialog_title))
+                    .setMessage(callingActivity.getResources().getString(R.string.password_dialog_text))
+                    .setView(password)
+                    .setPositiveButton(callingActivity.getResources().getString(R.string.dialog_ok), new DialogInterface.OnClickListener() {
+                        public void onClick(DialogInterface dialog, int whichButton) {
+                            // authenticate using the user/pwd and then execute the command
+                            try {
+                                setAuthentication(username, password.getText().toString()).execute();
+                            } catch (Exception e) {
+                                e.printStackTrace();
+                            }
+
+                        }
+                    }).setNegativeButton(callingActivity.getResources().getString(R.string.dialog_cancel), new DialogInterface.OnClickListener() {
+                public void onClick(DialogInterface dialog, int whichButton) {
+                    // Do nothing.
+                }
+            }).show();
+        }
+    }
+}
diff --git a/app/src/main/java/com/zeapo/pwdstore/git/PullOperation.java b/app/src/main/java/com/zeapo/pwdstore/git/PullOperation.java
new file mode 100644
index 00000000..abf4bfe6
--- /dev/null
+++ b/app/src/main/java/com/zeapo/pwdstore/git/PullOperation.java
@@ -0,0 +1,41 @@
+package com.zeapo.pwdstore.git;
+
+import android.app.Activity;
+
+import org.eclipse.jgit.api.Git;
+import org.eclipse.jgit.api.PullCommand;
+
+import java.io.File;
+
+public class PullOperation extends GitOperation {
+
+    /**
+     * Creates a new git operation
+     *
+     * @param fileDir         the git working tree directory
+     * @param callingActivity the calling activity
+     */
+    public PullOperation(File fileDir, Activity callingActivity) {
+        super(fileDir, callingActivity);
+    }
+
+    /**
+     * Sets the command
+     * @return the current object
+     */
+    public PullOperation setCommand() {
+        this.command = new Git(repository)
+                .pull()
+                .setRebase(true)
+                .setRemote("origin");
+        return this;
+    }
+
+    @Override
+    public void execute() throws Exception  {
+        if (this.provider != null) {
+            ((PullCommand) this.command).setCredentialsProvider(this.provider);
+        }
+        new GitAsyncTask(callingActivity, true, false, PullCommand.class).execute(this.command);
+    }
+}
diff --git a/app/src/main/java/com/zeapo/pwdstore/git/PushOperation.java b/app/src/main/java/com/zeapo/pwdstore/git/PushOperation.java
new file mode 100644
index 00000000..73ed05ff
--- /dev/null
+++ b/app/src/main/java/com/zeapo/pwdstore/git/PushOperation.java
@@ -0,0 +1,41 @@
+package com.zeapo.pwdstore.git;
+
+import android.app.Activity;
+
+import org.eclipse.jgit.api.Git;
+import org.eclipse.jgit.api.PushCommand;
+
+import java.io.File;
+
+public class PushOperation extends GitOperation {
+
+    /**
+     * Creates a new git operation
+     *
+     * @param fileDir         the git working tree directory
+     * @param callingActivity the calling activity
+     */
+    public PushOperation(File fileDir, Activity callingActivity) {
+        super(fileDir, callingActivity);
+    }
+
+    /**
+     * Sets the command
+     * @return the current object
+     */
+    public PushOperation setCommand() {
+        this.command = new Git(repository)
+                .push()
+                .setPushAll()
+                .setRemote("origin");
+        return this;
+    }
+
+    @Override
+    public void execute() throws Exception  {
+        if (this.provider != null) {
+            ((PushCommand) this.command).setCredentialsProvider(this.provider);
+        }
+        new GitAsyncTask(callingActivity, true, false, PushCommand.class).execute(this.command);
+    }
+}
diff --git a/app/src/main/java/com/zeapo/pwdstore/git/config/GitConfigSessionFactory.java b/app/src/main/java/com/zeapo/pwdstore/git/config/GitConfigSessionFactory.java
new file mode 100644
index 00000000..ab23361e
--- /dev/null
+++ b/app/src/main/java/com/zeapo/pwdstore/git/config/GitConfigSessionFactory.java
@@ -0,0 +1,24 @@
+package com.zeapo.pwdstore.git.config;
+
+import com.jcraft.jsch.JSch;
+import com.jcraft.jsch.JSchException;
+import com.jcraft.jsch.Session;
+
+import org.eclipse.jgit.transport.JschConfigSessionFactory;
+import org.eclipse.jgit.transport.OpenSshConfig;
+import org.eclipse.jgit.util.FS;
+
+public class GitConfigSessionFactory extends JschConfigSessionFactory {
+
+    protected void configure(OpenSshConfig.Host hc, Session session) {
+        session.setConfig("StrictHostKeyChecking", "no");
+    }
+
+    @Override
+    protected JSch
+    getJSch(final OpenSshConfig.Host hc, FS fs) throws JSchException {
+        JSch jsch = super.getJSch(hc, fs);
+        jsch.removeAllIdentity();
+        return jsch;
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/zeapo/pwdstore/git/config/SshConfigSessionFactory.java b/app/src/main/java/com/zeapo/pwdstore/git/config/SshConfigSessionFactory.java
new file mode 100644
index 00000000..333a6325
--- /dev/null
+++ b/app/src/main/java/com/zeapo/pwdstore/git/config/SshConfigSessionFactory.java
@@ -0,0 +1,70 @@
+package com.zeapo.pwdstore.git.config;
+
+import android.content.SharedPreferences;
+
+import com.jcraft.jsch.JSch;
+import com.jcraft.jsch.JSchException;
+import com.jcraft.jsch.Session;
+import com.jcraft.jsch.UserInfo;
+
+import org.eclipse.jgit.errors.UnsupportedCredentialItem;
+import org.eclipse.jgit.transport.CredentialItem;
+import org.eclipse.jgit.transport.CredentialsProvider;
+import org.eclipse.jgit.transport.CredentialsProviderUserInfo;
+import org.eclipse.jgit.transport.OpenSshConfig;
+import org.eclipse.jgit.transport.URIish;
+import org.eclipse.jgit.util.FS;
+
+public class SshConfigSessionFactory extends GitConfigSessionFactory {
+    private String sshKey;
+    private String passphrase;
+    private String username;
+
+    public SshConfigSessionFactory(String sshKey, String username, String passphrase) {
+        this.sshKey = sshKey;
+        this.passphrase = passphrase;
+        this.username = username;
+    }
+
+    @Override
+    protected JSch
+    getJSch(final OpenSshConfig.Host hc, FS fs) throws JSchException {
+        JSch jsch = super.getJSch(hc, fs);
+        jsch.removeAllIdentity();
+        jsch.addIdentity(sshKey);
+        return jsch;
+    }
+
+    @Override
+    protected void configure(OpenSshConfig.Host hc, Session session) {
+        session.setConfig("StrictHostKeyChecking", "no");
+
+        CredentialsProvider provider = new CredentialsProvider() {
+            @Override
+            public boolean isInteractive() {
+                return false;
+            }
+
+            @Override
+            public boolean supports(CredentialItem... items) {
+                return true;
+            }
+
+            @Override
+            public boolean get(URIish uri, CredentialItem... items) throws UnsupportedCredentialItem {
+                for (CredentialItem item : items) {
+                    if (item instanceof CredentialItem.Username) {
+                        ((CredentialItem.Username) item).setValue(username);
+                        continue;
+                    }
+                    if (item instanceof CredentialItem.StringType) {
+                        ((CredentialItem.StringType) item).setValue(passphrase);
+                    }
+                }
+                return true;
+            }
+        };
+        UserInfo userInfo = new CredentialsProviderUserInfo(session, provider);
+        session.setUserInfo(userInfo);
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/res/layout/activity_git_clone.xml b/app/src/main/res/layout/activity_git_clone.xml
index 07d57934..d53a2201 100644
--- a/app/src/main/res/layout/activity_git_clone.xml
+++ b/app/src/main/res/layout/activity_git_clone.xml
@@ -6,7 +6,7 @@
     android:paddingRight="@dimen/activity_horizontal_margin"
     android:paddingTop="@dimen/activity_vertical_margin"
     android:paddingBottom="@dimen/activity_vertical_margin"
-    tools:context="com.zeapo.pwdstore.git.GitHandler"
+    tools:context="com.zeapo.pwdstore.git.GitActivity"
     android:background="@android:color/white">
     <LinearLayout
         android:layout_width="match_parent"
diff --git a/app/src/main/res/menu/git_clone.xml b/app/src/main/res/menu/git_clone.xml
index 4a240712..092a8b2b 100644
--- a/app/src/main/res/menu/git_clone.xml
+++ b/app/src/main/res/menu/git_clone.xml
@@ -1,7 +1,7 @@
 <menu xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools"
     xmlns:pwstore="http://schemas.android.com/apk/res-auto"
-    tools:context="com.zeapo.pwdstore.git.GitHandler" >
+    tools:context="com.zeapo.pwdstore.git.GitActivity" >
     <item android:id="@+id/user_pref"
         android:title="@string/action_settings"
         android:orderInCategory="100"
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 86885674..8cf8d140 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -12,7 +12,7 @@
     <string name="dialog_delete_msg">Target directory already exist. Current version support only a single store. Do you want to delete the current password store directory?</string>
     <string name="dialog_delete">Delete directory</string>
     <string name="dialog_do_not_delete">Cancel</string>
-    <string name="title_activity_git_clone">Clone repository</string>
+    <string name="title_activity_git_clone">Repository information</string>
     
     <!-- Password Store -->
     <string name="creation_dialog_text">Please clone or create a new repository below before trying to add a password or any synchronization operation.</string>
@@ -41,7 +41,7 @@
     <!-- Git Async Task -->
     <string name="running_dialog_text">Running command...</string>
     <string name="jgit_error_dialog_title">Internal exception occurred</string>
-    <string name="jgit_error_dialog_text">Message from jgit: /n</string>
+    <string name="jgit_error_dialog_text">Message from jgit: \n</string>
 
     <!-- Git Handler -->
     <string name="read_only_dialog_text">You are about to use a read-only repository, you will not be able to push to it</string>
@@ -108,6 +108,7 @@
     <string name="pref_password_dialog_title">Set the time you want the password to be in clipboard</string>
     <string name="pref_copy_title">Automatically Copy Password</string>
     <string name="pref_copy_dialog_title">Automatically copy the password to the clipboard after decryption was successful.</string>
+    <string name="ssh_key_success_dialog_title" translatable="false">SSH-key imported</string>
     <string name="ssh_key_error_dialog_title">Error while trying to import the ssh-key</string>
     <string name="ssh_key_error_dialog_text">Message : \n</string>
     <string name="pref_recursive_filter">Recursive filtering</string>